IgA-dominant glomerulonephritis associated with hepatitis A.

Unlike hepatitis B and C, renal involvement has been extremely uncommon in patients with hepatitis Avirus (HAV) infection. Nephrotic syndrome has been documented as a rare complication in association with HAV infection. In this report, we describe a patient with serologically documented HAV infection, who presented with nephrotic syndrome. The renal biopsy showed an immunoglobulin A- (IgA) dominant glomerulonephritis (GN) with subendothelial immune deposits. This is the second biopsy-proven case report of a patient with acute HAV associated with IgA-dominant immune complex glomerulonephritis and nephrotic syndrome. This is perhaps the first case in which a patient experienced both IgA-dominant glomerulonephritis and cutaneous cryoglobulinemic vasculitis.